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Physicists have managed to create an experimental structure with a strong toroidal dipole response of the electromagnetic field over a wide frequency range. This response is associated with a special configuration of electromagnetic currents causing high concentration of the field. A special dielectric metalattice was created to produce and measure the response. The results can be used to create non-scattering materials, as well as to effectively control electromagnetic fields. The research was published in Advanced Optical Materials.
The Springer Nature Publishing House has recently updated the Nature Index (the reference period is from April 1, 2017 to March 31, 2018). The index tracks contributions to articles published in a group of highly selective science journals at the institutional and national level. ITMO University is among the top ten Russian scientific organizations and the second among Russian universities.
An international research team has produced the first-ever dielectric metasurfaces for nonlinear light conversion. Using these structures, scientists have been able to convert infrared radiation into visible light. They have also been able to implement additional functions: an ability to deflect light at a specific angle and to change the light polarization. Kirill Koshelev, a researcher at the Nanophotonics and Metamaterials Laboratory and one of the study’s authors, spoke to ITMO.NEWS about the project and the significance of its results.
The results of this year’s QS World University Ranking, published annually by the Quacquarelli Symonds company, have now been published. This year, QS assessed 4,763 universities (out of the world’s 26,000) from 151 countries, which is 463 more educational establishments than last year. The final ranking includes 1,011 universities from 85 countries. Last year, ITMO University made its debut in the ranking in the 601-650 position, which placed it in the top 2% of the planet’s universities; this year, the university was ranked 511-520, almost a 100 positions higher than its previous result.
Publishing your results is a vital step in the research lifecycle, as it allows you to get your work seen by the scientific community, and exchange your ideas globally. But writing a scientific paper is not only about creativity, but also about good structure and following some key rules. If you don’t follow these rules, your article may end up being either boring or incomplete, which means that it won’t be cited. Jeffrey Robens, Springer Nature Journal development manager, conducted an open workshop at ITMO University, where he shared some advice on how to write a good scientific article.
Physicists from ITMO University and Australian National University have developed the first-ever controlled nanodiamond-based light source. Experiments have shown that diamond shells can double the emission speed of light sources and help control them without any additional nano- and microstructures. This result was achieved due to artificially created defects in the diamonds’ crystal lattice. Results of this research are important for the development of quantum computers and optical networks. The study is published in Nanoscale.
An international research team has described new molecular mechanisms regulating the activity of macrophages, which are crucial elements of the immune response, in a breakthrough project. Macrophage activation is regulated by the level of itaconate, which has various effects on the production of substances causing inflammation. Regulatory pathways of itaconate and its derivatives are associated with the pathogenesis of some autoimmune diseases. Experiments on mice and isolated human cells have shown that these substances can significantly alleviate the symptoms of psoriasis. The results of this study are published in Nature.
An international research team has produced an analog of a solid-body crystal lattice from hybrid photon-electron quasiparticles - polaritons. In the resulting polariton lattice, certain particles’ energy does not depend on their speed. At the same time, the lattice’s geometry, particle concentration and polarization properties can still be modified. This opens up new perspectives for study of quantum effects and the use of optical computing. Results of the study were published in Physical Review Letters.
Scientists from ITMO University are the first to prove the possibility of wireless signal transmission in magnetic resonance imaging. Moreover, the resulting images are of even better quality than those produced using the common method of signal transmission over radio-frequency cables. This technology has already passed the first clinical trials on volunteers at the Almazov National Medical Research Center in St. Petersburg. It also received an award by the American Physical Society. The results of the research were published in Magnetic Resonance in Medicine, one of the most reputable scientific journals in the field of medical MRI.
Scientists from ITMO University have developed magnetically-driven nanoparticles containing thrombin. A drug based on these nanoparticles can be injected intravenously and delivered straight to the site of a vascular injury to stop internal bleeding. It can accelerate local clot formation and reduce overall blood loss by up to 15 times. The nanoparticles are not toxic to humans and can potentially be used for safe treatment. The results were published in Scientific Reports.